Wanted to share my results. I've been running this setup for about a year now but finally got it on a Dyno.
Wiesco 9.5:1 87mm pistons
Eagle H beam rods
Acl Race bearings
Cometic Head Gasket
ARP Head Studs
BC 272 Cams, Springs, and Ti Retainers
Circuit Sports Cam Gears
Garrett GTX2867r .64
Custom intake manifold
PBM High Mount Intercooler
Power FC D-Jetro
LS2 Coils
Deatsch Werks 810cc injectors
Sard FPR
Dual Walbro 255lph fuel pumps
Tuned on E85 at 2 bar 422whp 409wtq
